Optimal Strategy for Side Branch Stenting in Coronary Bifurcation Lesion

Exclusion Criteria

• •Cardiogenic shock
• •ST-elevation myocardial infarction within 48 hours of symptom onset
• •Left ventricular dysfunction (echocardiographic left ventricular ejection fraction \< 25%)
• •Graft vessels
• •Patients who have to receive clopidogrel due to other conditions
• •Patients who have to receive warfarin, cilostazol or other antiplatelet therapy
• •Hypersensitivity to clopidogrel or aspirin
• •Expectant survival less than 1 year
• •Women who plan to become pregnant
• •Patients with bleeding diathesis (coagulopathy, thrombocytopenia or platelet dysfunction, Gastrointestinal or genitourinary bleeding within the prior 3 months)
• •Patients who are actively participating in another drug or device investigational study, which have not completed the primary endpoint follow-up period.